Prior to or at the time of any such conveyance, Lessee, at its own expense, will promptly: (i) furnish Lessor with a full warranty bill of sale, in form and substance reasonably satisfactory to Lessor, with respect to such Replacement Engine; (ii) cause a further Lease Supplement hereto, in form and substance reasonably satisfactory to Lessor, subjecting such Replacement Engine to this Lease, to be duly executed by Lessee, and recorded pursuant to Applicable Law; (iii) furnish Lessor with such evidence of title to such Replacement Engine and of compliance with the insurance provisions of Section 12 hereof with respect to such Replacement Engine as Lessor may reasonably request; (iv) furnish Lessor with an opinion of Lessee's counsel acceptable to Lessor and any Lessor Lender to the effect that title to such Replacement Engine has been duly conveyed to Lessor, free and clear of all Liens, that such Replacement Engine is duly leased hereunder and that such Replacement Engine is duly